TAG. Theoretical and Applied Genetics This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Exploiting genomic tools for genetic dissection and improving the resistance to Fusarium stalk rot in tropical maize
In this study, GWAS and GP analyses were performed on 562 tropical maize inbred lines consisting of two populations. In total, 15 SNPs significantly associated with FSR resistance were identified across two populations and the combinedPOP consisting of all 562 inbred lines, with the P-values ranging from 1.99 × 10-7 to 8.27 × 10-13, and the phenotypic variance explained (PVE) values ranging from 0.94 to 8.30%. The genetic effects of the 15 favorable alleles ranged from -4.29 to -14.21% of the FSR severity. One stable genomic region at ~ 250 Mb on chromosome 1 was detected across all populations, and the PVE values of the...
Source: TAG. Theoretical and Applied Genetics - April 22, 2024 Category: Genetics & Stem Cells Authors: Junqiao Song Yubo Liu Rui Guo Angela Pacheco Carlos Mu ñoz-Zavala Wei Song Hui Wang Shiliang Cao Guanghui Hu Hongjian Zheng Thanda Dhliwayo Felix San Vicente Boddupalli M Prasanna Chunping Wang Xuecai Zhang Source Type: research

Statistical sampling of missing environmental variables improves biophysical genomic prediction in wheat
Theor Appl Genet. 2024 Apr 18;137(5):108. doi: 10.1007/s00122-024-04613-0.ABSTRACTThe integration of genomic prediction with crop growth models enabled the estimation of missing environmental variables which improved the prediction accuracy of grain yield. Since the invention of whole-genome prediction (WGP) more than two decades ago, breeding programmes have established extensive reference populations that are cultivated under diverse environmental conditions. The introduction of the CGM-WGP model, which integrates crop growth models (CGM) with WGP, has expanded the applications of WGP to the prediction of unphenotyped tr...
Source: TAG. Theoretical and Applied Genetics - April 18, 2024 Category: Genetics & Stem Cells Authors: Abdulqader Jighly Thabo Thayalakumaran Surya Kant Joe Panozzo Rajat Aggarwal David Hessel Kerrie L Forrest Frank Technow Radu Totir Mike Goddard Jennie Pryce Matthew J Hayden Jesse Munkvold Garry J O'Leary Source Type: research

Genetic mapping reveals the complex genetic architecture controlling slow canopy wilting in soybean
Theor Appl Genet. 2024 Apr 17;137(5):107. doi: 10.1007/s00122-024-04609-w.ABSTRACTIn soybean [Glycine max (L.) Merr.], drought stress is the leading cause of yield loss from abiotic stress in rain-fed US growing areas. Only 10% of the US soybean production is irrigated; therefore, plants must possess physiological mechanisms to tolerate drought stress. Slow canopy wilting is a physiological trait that is observed in a few exotic plant introductions (PIs) and may lead to yield improvement under drought stress. Canopy wilting of 130 recombinant inbred lines (RILs) derived from Hutcheson × PI 471938 grown under drought stres...
Source: TAG. Theoretical and Applied Genetics - April 17, 2024 Category: Genetics & Stem Cells Authors: Ethan Menke Clinton J Steketee Qijian Song William T Schapaugh Thomas E Carter Benjamin Fallen Zenglu Li Source Type: research

Optimizing selection based on BLUPs or BLUEs in multiple sets of genotypes differing in their population parameters
Theor Appl Genet. 2024 Apr 15;137(5):104. doi: 10.1007/s00122-024-04592-2.ABSTRACTSelection response in truncation selection across multiple sets of candidates hinges on their post-selection proportions, which can deviate grossly from their initial proportions. For BLUPs, using a uniform threshold for all candidates maximizes the selection response, irrespective of differences in population parameters. Plant breeding programs typically involve multiple families from either the same or different populations, varying in means, genetic variances and prediction accuracy of BLUPs or BLUEs for true genetic values (TGVs) of candi...
Source: TAG. Theoretical and Applied Genetics - April 15, 2024 Category: Genetics & Stem Cells Authors: Albrecht E Melchinger Rohan Fernando Andreas J Melchinger Chris-Carolin Sch ön Source Type: research

QTL mapping and candidate gene analysis reveal two major loci regulating green leaf color in non-heading Chinese cabbage
Theor Appl Genet. 2024 Apr 15;137(5):105. doi: 10.1007/s00122-024-04608-x.ABSTRACTTwo major-effect QTL GlcA07.1 and GlcA09.1 for green leaf color were fine mapped into 170.25 kb and 191.41 kb intervals on chromosomes A07 and A09, respectively, and were validated by transcriptome analysis. Non-heading Chinese cabbage (NHCC) is a leafy vegetable with a wide range of green colors. Understanding the genetic mechanism behind broad spectrum of green may facilitate the breeding of high-quality NHCC. Here, we used F2 and F7:8 recombination inbred line (RIL) population from a cross between Wutacai (dark-green) and Erqing (lime-gree...
Source: TAG. Theoretical and Applied Genetics - April 15, 2024 Category: Genetics & Stem Cells Authors: Aimei Bai Tianzi Zhao Yan Li Feixue Zhang Haibin Wang Sayyed Hamad Ahmad Shah Li Gong Tongkun Liu Yuhui Wang Xilin Hou Ying Li Source Type: research

Characterisation and mapping of a Globodera pallida resistance derived from the wild potato species Solanum spegazzinii
We describe a new source of resistance to G. pallida from wild potato germplasm. The diploid species Solanum spegazzinii Bitter accession CPC 7195 shows resistance to G. pallida pathotypes Pa1 and Pa2/3. A cross and first backcross of S. spegazzinii with Solanum tuberosum Group Phureja cultivar Mayan Gold were performed, and the level of resistance to G. pallida Pa2/3 was determined in progeny clones. Bulk-segregant analysis (BSA) using generic mapping enrichment sequencing (GenSeq) and genotyping-by-sequencing were performed to identify single-nucleotide polymorphisms (SNPs) that are genetically linked to the resistance, ...
Source: TAG. Theoretical and Applied Genetics - April 15, 2024 Category: Genetics & Stem Cells Authors: Ulrike Gartner Miles R Armstrong Sanjeev K Sharma John T Jones Vivian C Blok Ingo Hein Glenn J Bryan Source Type: research

A cluster of putative resistance genes is associated with a dominant resistance to sunflower broomrape
Theor Appl Genet. 2024 Apr 13;137(5):103. doi: 10.1007/s00122-024-04594-0.ABSTRACTThe HaOr5 resistance gene is located in a large genomic insertion containing putative resistance genes and provides resistance to O. cumana, preventing successful connection to the sunflower root vascular system. Orobanche cumana (sunflower broomrape) is a parasitic plant that is part of the Orobanchaceae family and specifically infests sunflower crops. This weed is an obligate parasitic plant that does not carry out photosynthetic activity or develop roots and is fully dependent on its host for its development. It produces thousands of dust-...
Source: TAG. Theoretical and Applied Genetics - April 13, 2024 Category: Genetics & Stem Cells Authors: Camille Pubert Marie-Claude Boniface Alexandra Legendre Mireille Chabaud S ébastien Carrère Caroline Callot Charlotte Cravero Isabelle Dufau Mihaela Patrascoiu Aur élie Baussart Elodie Belmonte V éronique Gautier Charles Poncet Jun Zhao Luyang Hu Weij Source Type: research

Genomic basis determining root system architecture in maize
In this study, we conducted a comprehensive genetic analysis for 14 shoot-borne root traits using 513 inbred lines and 800 individuals from four recombinant inbred line (RIL) populations at the mature stage across multiple field trails. Our analysis revealed substantial phenotypic variation for these 14 root traits, with a total of 389 and 344 QTLs identified through genome-wide association analysis (GWAS) and linkage analysis, respectively. These QTLs collectively explained 32.2-65.0% and 23.7-63.4% of the trait variation within each population. Several a priori candidate genes involved in auxin and cytokinin signaling pa...
Source: TAG. Theoretical and Applied Genetics - April 12, 2024 Category: Genetics & Stem Cells Authors: Pengcheng Li Zhihai Zhang Gui Xiao Zheng Zhao Kunhui He Xiaohong Yang Qingchun Pan Guohua Mi Zhongtao Jia Jianbing Yan Fanjun Chen Lixing Yuan Source Type: research

Genetic characterization of a locus responsible for low pungency using EMS-induced mutants in Capsicum annuum L
In this study, we characterized two allelic ethyl methanesulfonate-induced mutant lines with extremely low pungency ('221-2-1a' and '1559-1-2h'). These mutants, derived from the pungent Korean landrace 'Yuwolcho,' exhibited lower capsaicinoid content than Yuwolcho but still contained a small amount of capsaicinoid with functional capsaicinoid biosynthetic genes. Genetic crosses between the mutants and Yuwolcho or pungent lines indicated that a single recessive mutation was responsible for the low-pungency phenotype of mutant 221-2-1a; we named the causal locus Pungency 4 (Pun4). To identify Pun4, we combined genome-wide po...
Source: TAG. Theoretical and Applied Genetics - April 12, 2024 Category: Genetics & Stem Cells Authors: Seungki Back Jung-Min Kim Hayoung Choi Joung-Ho Lee Koeun Han Doyeon Hwang Jin-Kyung Kwon Byoung-Cheorl Kang Source Type: research